Society of Automotive Engineers AS568B Aerospace Size Standard for O-Rings
- 214 V90 Cylinder with Large Neck/Valve (3/4 NPS – All Aluminum, most Steel cylinders)
- 116 V90 Cylinder with Small Neck/Valve (7/8 UNF – “Genesis” 3500 psi Steel cylinders)
- 112 V90 Standard DIN Regulator/Valve (Nearly all DIN regulators)
- 111 V90 Small DIN Regulator/Valve (You know if you need this one)
- 015 V90 Bonnet Nut O-Ring for non-Thermo valves/manifolds
- 014 V90 Standard Yoke Regulator/K-valve
- 013 V90 Large Low-Pressure Port/Hose (1/2 UNF)
- 012 V90 High-Pressure Port/Hose (7/16 UNF) Manifold and Manifold Port Plugs
- 011 V90 Standard Low-Pressure Port/Hose (3/8 UNF)
- 010 V90 Low-Pressure Hose/2nd Stage Regulator Cylinder Valve Stem
- 003 V75 High-Pressure Hose/SPG swivel
*V90 = 90 Durometer Viton